external fixator ilizarov
The external fixator Ilizarov is a revolutionary medical device designed for complex orthopedic procedures and limb reconstruction. Named after its inventor, Dr. Gavriil Ilizarov, this system consists of circular rings connected by adjustable struts and wires that provide stable external fixation for bones. The apparatus utilizes the principle of distraction osteogenesis, where gradual separation of bone segments promotes new bone formation. This versatile system allows for precise adjustments in multiple planes, enabling surgeons to correct deformities, lengthen limbs, and treat complex fractures with remarkable accuracy. The Ilizarov frame's modular design accommodates various configurations to suit different anatomical requirements and treatment objectives. It incorporates thin wires that pass through the bone and attach to external rings, creating a stable construct that supports healing while permitting weight-bearing. The system's unique tensioned-wire fixation method distributes forces evenly across the frame, minimizing stress on individual components and optimizing stability. Modern iterations of the Ilizarov apparatus feature advanced materials and refined engineering, enhancing both patient comfort and treatment outcomes. The device finds extensive application in treating nonunions, malunions, bone defects, and limb length discrepancies, making it an indispensable tool in contemporary orthopedic surgery.